Function tracking_cf_in_range 

pub fn tracking_cf_in_range(value: f64) -> bool

MBA-1358: the ONE accepted band for a scope tracking correction factor, shared by the native CLI and the WASM terminal so the two surfaces cannot drift: strictly between 0.5 and 1.5 (a real scope does not mistrack by 50% — values outside the band mean the tall-target test or a hand edit went wrong) and finite.